Means for measuring yarn in pirn and like winding apparatus



SePt- 27 1938- G. A. ARMETT ET AL 2,131,086

MEANS FOR MEASURING YARNy 1N PIRNAND LIKE wINDING APPARATUS Filed oct. 23, 1954 v2 sheets-.stie 1 .TKTH m .LFYLVv w MAUm A ..RLF.. APN `RE 7 E GUwn.

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Sept 27 1938- G. A. ARMETT ET'AL K 2,131,086

MEANS FOR MEASURING YARN IN PIRN ND LIKE WINDING APPARATUS n l Filed 061.23, 1934 2 sheets-sheet 2.

,ABM GUH RHP ERT GAS ATToM/Eys Patentedspi. 27, 1938 ,1\IEANS .FOR` YARN IN VPIBN AND LIKE WINDING George Arthur Armett, 'Arthurl Princelitck,v and Stephen MillerFulton, Spondon, near Derby, England, assignors to Celanese Corporation of America, a corporation of Delaware Application october z3, 1934, serial No: 749,561; In'Great'Britain November 7, 1933 UNITED STATES- 1o claims. (cica-13s) This invention relates to'means vfor measuring yarn-in pirn-winding and like winding apparatus,

andgis particularly concerned with means lfor enabling a predetermined length of yarn to be 1 5 wound on to the pirn tube or other support.

each pirn shall contain, within small limits, the

same amount of yarn. -Attempts have been made to provide apparatus whereby the amount of yarn wound on to a pirn can be predetermined, for l example by causing the yarn to pass round a roller or like device on its way to the pirn tube, means being provided whereby the spindle of the winding machine is brought to rest when the roller has made a certain number of revolutions.

20 Such apparatus, however, is subject to certain disadvantages. Thus, for example, the reliability of the device is diminished by the great possibility.

of slip between the yarn andthe roller, while the device, having to be driven by the yarn itself, may cause stretching of the yarn, which is a frequent cause of uneven dyeing and is particularly objectionable since it may not be detected until.

the fabric has been made or even dyed. These yarn is of smooth character, for example when itconsists of continuous artificial laments since it is then more likely to slip. It is well known, moreover, that in the processing of continuous lament yarns, it is particularly important to avoid strains.

The present invention is concerned with apparatus the object of which is to enable the amount of yarn wound into a pirn or other package to be predetermined to a relatively high dee() gree of accuracy while avoiding disadvantages inherent in methods such as that referred tof-above.

l The apparatus can readily be manufactured in a compact form, capable of application to Aexisting types of pirn winding and like machines, and

5 inexpensive and simple in operation. Moreover, "1 it may be made entirely automatic so that its accuracy doesnot depend upon any adjustment by the operative. It is capable of application in connection with supply packages of any desired` 50 form. v Q- The apparatus of the invention comprises a member adapted to be driven ata predetermined rate from the spindle drive of the machine, and means actuated by said member for stopping the 55 rotation of the spindle when the predetermined amount of yarn has been wound on to the pack age carrier. The spindle drive may, for example, drive through suitable reduction gear a notched disc or the like, by the rotation of which the stop mechanism is actuated. In the preferred disadvantages are particularly evidentwhen thel form ,of the"inventlon, fthe' stop mechanism' is I actuated by' a weighted 4or spring-loaded lever,

which bears upon the periphery of a slotted disc driven through worm gearing `from the spindle drive. The stop mechanism, which is ordinarily out of operation, is caused to operatebythe fall of the lever into Athe slot ofthe disc.A A simple form of stop device comprises a member adaptedI to bemoved behind an abutment on the-traverse mechanism so as to release the'starting and stop-' ping lever and so make use oi.' the'ordinary stop# mechanism vprovided on such' winding machines. f

Convenientlyv the disemakes onefull rotation beforewstoppingthe spindle.' the rate of rotation ofthe disc being adjusted in' accordance with the number of` turns of the spindlenecessary to fill*` the pirn tube. Such'numberfof turnsdepends on the length; and diameter of the tube and the denier or counts of the yarn. Means may be provided for altering the' gear ratio between the spindle drive and the disc in accordance With'anyof these `factors. Such means may very conveniently take theform of provision for replacing'` f one or more'of the gearsbetween'the spindle and the Vdisc bygears of diierent'- size, rsets of change wheels being provided 'f or thisl purpose.

The disc may be drivenvfrom any'sitable p artf of lthe winding mechanism, e. gifromA the spindle itself. 1 4

' Preferably the apparatus is Vsuch that on restarting the machine after a stoppage, the stop actuating mechanism is automatically setv forv effectingthe next'jstoppage of the spindle." lThusy means mayU b egprovided for lifting, or assisting lto lift, thefweighted leverout'of the slot inthe disc, thus avoiding the necessity of l'supporting it above the'slot during the 'relatively long time taken forthe disc to revolvesov as vto carry the f slot yout of the position of engagement with the' stop lever. v'The slot inthe disc may, for'example, have a steep side, which allows the stop vleverV the accompanying drawings in which" Figs. 1 and Z'arepart sectional front and side elevations o f the measuring device rshowing the driving connection to the pini-winding spindle; Fig. 3 is a perspective view of the device mounted on one head of a pini-winding machine; Fig. 4 is another perspective view showing how the device operates to effect stoppage of pirna winding;-and

Fig. 5f is 'a'diagrammatic viewof a modified form ofthe device;v .g f f f Referring to- Figs. lfand 2, the prin'cipalfapart apparatus according pto the c Y 2 a,is1,oso

of the measuring device according to the invention is shown as comprising a gear boxj-II` adapted to be mounted on the gear box II of a pirnwinding head.so as to lie above but somewhat to i one side of the pirn tube spindle I2 projecting 1g 22 connect the shaft II with a further shaft 2l extending outside the gear boxIIand carrying therea pinion .24. The pinion 24 meshes with a pinion 2I on a shaft 2I passing inside the boxy II and carrying a disc 21 that projects through a slot 2l at the top of the box. 'A slot-2 I.i' s formed ln theperiphery of the dise 21, one edge II of the slot being substantially radial, while the other edge II is inclined. v.

lI-ivoted on a bracket I2 carried by the box II is a lever Il provided with a weight 24 at one end that causes it to rest on the periphery of the disc 2 1.

By reason of the gear connection betweenthe so pirn tube spindle I2 and the disc 21. thedisc is caused to rotate slowly, the ratios of the various gears being chosen so that the disc makes one revolution in the time vrequired y'to complete the winding of one pirn, i. e. 'after afpredet'ermined 3g number of revolutionsv ofthe spindle I2. During winding, the 4weight I4 is heid raised by the engagement of the lever II with the periphery of the disc 21. After one revolution of the disc the lever 33 is caused by the weight I4 to failover the sharp edge III ofthe notch 2I, so rocking the downwardly depending portion of the wire II to the left. This brings the wire to the dotted posi? tion shown in Fig. 3 behind theabutment II near the gear box end of'thetaverse rod I1.` 0n the y next rearward `rnotion of thetraverse rod, vthe abutment lIdrives the wire I Iag'ainsta member projecting from an arm II.' and so yrocks the arm about its pivot u. 'rnis withdraws a latch4i on the arm II fromvengagement with an 5o arm 42 carried by the starting and stopping lever" rod 4I. The starting lever is thus vallowed to rock and stop lby spring action `in the usual way the mechanism inside the gear box Ii by .which the spindle I2 is driven.

42, the disc 21 recommences its'rotation, the lever II riding up the inclinedl edge II oi' the notch 29 until the lever again rests onthe periph- ,o ery ofthe disc. During'y the lifting of the lever II the mechanism is' prevented from releasing the starting levervby means. of. a stil! wire 44 car-g ried by the.traverse mechanism 4I, Vthe wire 44 passing between the wire II and the abutment u II until sufllcient time has elapsed for the lever '32 to 'be lifted. The striking of the wire II by the wire 44 assists the lever II-to ride up the incline II. Astraversing .continues the wire 44 is drawnforwardly beyond the 4wire II, so permining the 1arte: again to pass vbehind the abut-v ment II when the pirn is completed.

In order that the device may be used for the winding oi diiferent amounts `of yarn depending upon the size of the pirn and the denieror count 'rl o! the yarn, different gear ratios may be employed To the other end of the lever, is secured a downwardly depending stil! wire II.

at the gears II, I4 and 24, 2I. In order to provide for the diiferent ratio of the gears II, I4, the spindle II is carried by a block 4I adjustably Ymounted in a curved slot 41 in a projection 4I of the gear box II. 'Ihe spindle II may thus be 5 swung about the shaft II to allow the Vgear I4 to be replaced by other gears of diiIerent sizes, the

positions of the diil'erentgears I4 along the projecting end II being `adjusted to bring the gears properly into mesh with the worm II. 10 Each head of thepirn-winding machine'is iltted with one of the devices above described. the gear i "ratiosemployed being adjustable for each individual case, if desired.

. Referringto Fig. 5, a modiilcation ofthe device 15 is shown` employing a single gear box to control winding at a number ofheads in one machine in the where all the heads are required ,to wind the same amount of yarn von toleach pirn.

The modined device comprises a gear box 4I pro- 20v vided with e. gear lII driven from any suitable' part of the machine, a reduction gear inside the Agearbox driving a shaft II through one 'revolution of the time taken to wind a pii'n.' Opposite .each winding head a slotted disc I2 is disposed on 25 the shaft II,` the disc being loosely mounted between a collar II secured vto the shaft and a slotted member I4 `behind which is disposed a strongl spring II abutting against a further collar II securedrto the shaft.' During winding of the 30 pim the spring II is allowed to press the member I4 firmly against the boss of Vthe disc I2, so causing the discvto be driven at the speed of the shaft II bythe trictionalengagement bey tween the disc and the collar II. 35 A lever I1 pivoted at II is provided with a weight II at lone end and at the other endis secured thereto a depending wire Iii. .The functions of the slotted disc I2, weighted lever'I1 and wire II are the same as thoseof the disc 21, lever n II and wire II vof Figs. 1-4, the lever II falling,y into a notch II in the 'disc I2 to bring the wire'II behind the abutment'on the traverse rod.

The release of the starting and stopping lever rod 4I of the pirn winding head is eiiected yasi de- 45 scribed with reference to Fig. 4, the rod rotating clockwise by means of the yusual spring inside the winding head to stop rotation of the winding spindle. At the saine time a lever I2 secured to the starting lever rod is rocked in a 'clockwise direction by the release `of the rod 4I and through a link II rocks a ievernII'mounted on the same pivot II as the lever I1. A downwardly depending v A member II of the lever I4 engages the slot round Upon replacement of the wound pirn by an empty tube and reg-setting of the -starting lever the member I4 so that rocking of the lever I4 u due tothe release oi' the starting lever rod withdraws the member from engagement with the slotted disc I2, overcomingthespring II and allowing the disc I2 to remain stationary notwith-l standing continuance of the drive of the shaft lli.` In order to ensure that the disc I2 does not commence rotation until the starting lever rod-43 has been operated to recommence winding on an empty-pim tube, the lever I4 -is providedv with a projecting member II extending towards the y'disc I2. When the lever I4 is rock'ed to release the disc I2,the proje`cting 4member' II is rocked into u the path of` a small block-"I1 secured to the race' of the bBo long as the starting lever rod remains released, the projecting member II en` 70 gages the block I1 .and prevents 'rotation of the f discI2. When the starting lever rod is operated to recommence winding, the projecting member II is removed from engagement with theblock I1 at the same time as the member II allows the 1I spring II to urge the member ll against the boss oi' the disc 52 to bring about the frictional drive of the disc from the shaft 6I.`

Though in this modification all' the heads controlled by the gear box 49 must complete their winding at the same time, winding at each head takes place independently oi the others, since timing of the frictional drive of the particular slotted disc 52 is controlled only by the operation of the starting lever rod 43 of the corresponding winding head.

What we claim and desire'to secure by Letters Patent is:- V

1. In a pirn winding or like'machine comprising a winding spindle provided with stop mechanism and a yarn traversing mechanism, a yarn measf uringdevice including a member adapted to be driven at a predetermined rate relative to the winding spindle, and -means controlled by said member to be engaged by the traversing mechanism after a predetermined number of revolutions o! the winding spindle, to operate the stopl mechanism for the winding spindle.

v2. In a pim winding or like machine comprising a winding spindle provided with stop mecha- `nism and a. yarn traversing mechanism, a yarn measuring device including a notched disc in geared driving connection with the winding spindle. a lever adapted to be supported by the edge of said notched disc, and means controlled by lsaid lever to be engaged by the traversing-mechanism alter a predetermined number of revolutions o! the winding spindle to operate the stop mechanism for the winding spin'dle.

3. In a pirn winding or likemachine comprising a winding spindle provided with stop mechanism and ayarn traversing mechanism, a yarn measuring device including a notched disc in geared driving connection with the winding spindie, said geared driving connection containing` exchangeable gears, a lever adapted'to be supported by the edge of `said notched disc, and

` means controlled by said lever to be engaged by `pirn winding and like machines comprising-a the traversing mechanisml after a predetermined number of revolutions of the winding spindle to operate the stop mechanism for the winding spindle.

4. Yarn measuring device for application to winding spindle having stop mechanism, said device comprising a rotatable member, gearing adapted to be put in driving connection with a winding spindle of a machine so as to effect rotation of said member and a member controlled by said rotatable member to engage with the traversing mechanism after a predetermined number ot revolutions of the spindle to actuate-g the stop mechanism for the spindle.

5. Yarn measuring device for application to;

pirn winding and like machines comprising a winding spindle having stop mechanism, said device comprising a notched disc, gearing adapted to be put in driving connection with a winding spindle of the machine so as to effect rotation of said disc, a lever adapted to rest on the ledge Yworin-wheel spindle anda pivotal mounting tor the worm-wheelfspindle. said spindle being ad. :lustably positioned to allow exchangeable wormwheels to be carried by vthe spindle and brought into mesh with the worm on the winding spindle,

-a lever adapted to be supported bythe edge of the 1 disc and means actuated'by they lever adapted to eilect stopping of the spindle', said means being actuated'when the rotation of vthe disc brings the notch beneath the lever'.

'7. Pirn-winding and llike machines, comprisnism, starting and stopping means for said shindle, a member in geared driving connection with the winding spindle, andmeans actuated :by said member comprisingran abutment on the travers-V ing means, a latch engaging the startinggandy ing a'winding spindle, yarn traversingmechaf stopping Vmeansand `a member adapted tobe moved into position and to be engaged by the abutment and caused thereby to release the latch. said meansbelng actuatedvby; said member after a predetermined number -of revolutions oi the v'spindle to release the starting and stopping means, so

stopping the rotation of the spindle.-

8. In a pim-windingor like machine comprising a winding' spindle and ayarn traversing .A

mechanism, a yarn-measuring device includinga notched disc in geareddriving connection with the winding spindle, said; geared driving connection comprising a worm onthe winding spindle, a-

-Worin-wheel spindle, a pivotal mounting forthe worm-wheel `spindle, said worm-wheel spindle being adjustably positioned to allow interchangeable wormwheels to be' carried by said' wormV wheel spindle-and brought into mesh with the worm on thewindingspindla'a lever adaptedto be supported by thek edge of saidnotched disc,

and -meansactuated by-saidleverlaftera'prede- 1 f. termined numberV of `revolutions of the winding spindle to cooperate'with the traversing mecha- `nism to stop ythe rotation of the 'winding spindle.

9. A pim-winding. or like.4 machine comprisingl a plurality of winding spindles and corresponding traversing mechanisms, fa shaft, friction-driven notched discs mounted on the shaft adjacent each spindle, `said discs being adapted to be driven at a predetermined ra relative tosaid spindle, levers adapted to be supported byfthe edges of the discs, means connected to each `leveilto coj operate with the corresponding traversing mechanism to eilect stopping of the corresponding spinf dle. said means, being actuated when the rotation of the particular disc lbrings thenotchl beneath that' lever, and'means toi disconnect the frictiondrive:between a disc and the shaft when the spindleecorresponding to that disc is stopped.

lil. 'A pim-winding or like `machine comprising aplurality or winding spindlesand corresponding* J traversing mechanisms, ,a shaft,` friction-driven notched discs mounted-onthe. shaft adjacent" each spindle,'said discs beingl adapted to be drivenj` at a predeterminedrate relative to said-spindle,

levers adapted tobe supported by the edges oi.'

the discs, ymeansconnected to each- -lever to cooperate with the corresponding'traversing mechanism to eiilectA stopping 'of the corresponding spindle, said means'being actuatedwhen the rotation or the particularfdisc bringsthe notch beneath that levenand meansgtofpr'event rotation n oi' a'discwhen the spindlecorresponding to that disc isnst'opped.

",Gnonanan'monamm'r. 

